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Finding the Fourth Proportional to 7,512,302.80, 10,366,978.53 and 4,249,047.34

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Solution

The fourth proportional to 7,512,302.80, 10,366,978.53 and 4,249,047.34 is: 5,863,685.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,512,302.80 : 10,366,978.53 = 4,249,047.34 : x
  2. Step 2: Convert to fraction form
    7,512,302.80/10,366,978.53 = 4,249,047.34/x
  3. Step 3: Cross multiply
    7,512,302.80x = 10,366,978.53 × 4,249,047.34
  4. Step 4: Simplify right side
    7,512,302.80x = 44,049,782,546,733.61
  5. Step 5: Solve for x
    x = 44,049,782,546,733.61/7,512,302.80
  6. Step 6: Final answer
    x = 5,863,685.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.